As a male survivor of domestic violence, I didn't even know I was going through it while I was going through it. And I think that's more usual than not.
At the time I was being abused, the official line was that men could not be the victim in a DV situation. A lot of DV advocates, workers, and researchers still believe it, some for political reasons (there's barely enough money available for female victims, and so is jealousy guarded against any male victim encroachment). There are researchers that currently earn their living trying to prove that the NISVS doesn't say what it actually says, which is that male and female DV rates in the USA are now roughly equal.
I've written a million words on this topic here at these boards. I have personally been trying for a year to get the NCDSV to take down old, outdated articles from their resource clearinghouse (listed under Male Victims, no less) that conclude that either 1. male DV victims do not exist, and men that claim to be are always the true abusers in any DV relationship and 2. maybe there are a few male DV victims, but the fact that males injure and kill their partners more often than women is enough reason to completely ignore and deny resources to male victims. But this was the official line until just about ten years ago.
The tide is changing somewhat as more men come out as actual victims. I believe that now most people do understand that men can be victims of DV. That doesn't mean that there are any resources for abused men yet. However, during the previous VAWA renewal Congress mandated that groups receiving federal money were required to support some services for men - but most local shelters and programs don't receive federal money. In the last year, both the Domestic Violence Hotline and RAINN have made their websites gender-neutral (mostly to satisfy trans groups, but men are still receiving the benefit from it).
My personal issue, if I can inject some of my own shit into this, is that I'm not just a DV victim but also a victim of sexual abuse at the same time. I've been looking for a year and I simply cannot find any other men like me. Either I'm pretty unique, or this is still an unspoken issue among male DV survivors.